<script setup>
import { ref, onMounted } from 'vue'
import { queryPageApi, queryDeptListApi, queryRoleListApi, addApi, queryByIdApi, updateApi, deleteApi } from '@/api/user'
import { ElMessage, ElMessageBox } from 'element-plus'
import { Search, Refresh, Plus, Edit, Delete, UserFilled, Upload, InfoFilled, Loading } from '@element-plus/icons-vue'

const token=ref('')
onMounted(() => {
  search()
  loadDeptList()
  loadRoleList()
})
//获取token
token.value=localStorage.getItem('token');

// 查询参数
const queryParams = ref({
  name: '',
  phone: '',
  deptId: '',
  status: '',
  page: 1,
  pageSize: 10
})

// 表格数据
const userList = ref([])
const total = ref(0)

// 部门列表
const deptList = ref([])

// 角色列表
const roleList = ref([])

// 加载部门列表
const loadDeptList = async () => {
  const result = await queryDeptListApi()
  if (result.code == 1) {
    deptList.value = result.data
  }
}

// 加载角色列表
const loadRoleList = async () => {
  const result = await queryRoleListApi()
  if (result.code == 1) {
    roleList.value = result.data
  }
}

// 搜索
const search = async () => {
  const result = await queryPageApi(queryParams.value)
  if (result.code == 1) {
    userList.value = result.data.rows
    total.value = result.data.total
  }
}

// 清空
const clear = () => {
  queryParams.value = {
    name: '',
    phone: '',
    deptId: '',
    status: '',
    page: 1,
    pageSize: 10
  }
  search()
}

// 分页大小改变
const handleSizeChange = (val) => {
  search()
}

// 页码改变
const handleCurrentChange = (val) => {
  search()
}

// 性别格式化
const formatGender = (gender) => {
  return gender === 1 ? '男' : '女'
}

// 状态格式化
const formatStatus = (status) => {
  return status === 1 ? '正常' : '停用'
}

// 对话框相关
const formTitle = ref('')
const dialogFormVisible = ref(false)
const formLabelWidth = '100px'
const user = ref({
  username: '',
  name: '',
  phone: '',
  email: '',
  gender: '',
  status: '',
  deptId: '',
  roleId: '',
  image: '',
  remark: ''
})

// 表单校验规则
const userFormRef = ref(null)
const rules = ref({
  username: [
    { required: true, message: '用户名为必填项', trigger: 'blur' },
    { min: 2, max: 20, message: '用户名应该在2-20位之间', trigger: 'blur' }
  ],
  name: [
    { required: true, message: '姓名为必填项', trigger: 'blur' },
    { min: 2, max: 20, message: '姓名应该在2-20位之间', trigger: 'blur' }
  ],
  phone: [
    { required: true, message: '手机号为必填项', trigger: 'blur' },
    { pattern: /^1[3-9]\d{9}$/, message: '请输入正确的手机号', trigger: 'blur' }
  ],
  email: [
    { required: true, message: '邮箱为必填项', trigger: 'blur' },
    { min: 5, max: 50, message: '邮箱应该在5-50位之间', trigger: 'blur' },
    { type: 'email', message: '请输入正确的邮箱格式', trigger: 'blur' }
  ],
  gender: [
    { required: true, message: '性别为必填项', trigger: 'blur' }
  ],
  status: [
    { required: true, message: '状态为必填项', trigger: 'blur' }
  ],
  remark: [
    { max: 50, message: '备注信息不能超过50个字符', trigger: 'blur' }
  ]
})

// 添加用户
const handleAdd = () => {
  dialogFormVisible.value = true
  formTitle.value = '新增用户'
  user.value = {
    username: '',
    name: '',
    phone: '',
    email: '',
    gender: '',
    status: '',
    deptId: '',
    roleId: '',
    image: '',
    remark: ''
  }
  if (userFormRef.value) {
    userFormRef.value.resetFields()
  }
}

// 保存用户
const save = async () => {
  userFormRef.value.validate(async (valid) => {
    if (valid) {
      // 校验通过
      let result
      if (user.value.id) {
        // 修改用户
        result = await updateApi(user.value)
      } else {
        // 新增用户，设置默认密码为用户名+123
        const userData = {
          ...user.value,
          password: user.value.username + '123'
        }
        result = await addApi(userData)
      }

      if (result.code == 1) {
        ElMessage.success(user.value.id ? '修改成功' : '添加成功')
        dialogFormVisible.value = false
        search()
      } else {
        ElMessage.error(result.msg || '操作失败')
      }
    } else {
      ElMessage.error('请填写正确的数据')
    }
  })
}

// 修改用户
const handleEdit = async (id) => {
  const result = await queryByIdApi(id)
  if (result.code == 1) {
    dialogFormVisible.value = true
    formTitle.value = '修改用户'
    user.value = result.data

    if (userFormRef.value) {
      userFormRef.value.resetFields()
    }
  } else {
    ElMessage.error(result.msg || '获取用户信息失败')
  }
}

// 删除用户
const handleDelete = async (id) => {
  ElMessageBox.confirm(
    '您确认要删除该用户吗?',
    '提示',
    {
      confirmButtonText: '确定',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
    .then(async () => {
      const result = await deleteApi(id)
      if (result.code == 1) {
        ElMessage({
          type: 'success',
          message: '删除成功',
        })
        search()
      } else {
        ElMessage.error(result.msg || '删除失败')
      }
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '删除取消',
      })
    })
}

// 批量删除
const selectedIds = ref([])

const handleSelectionChange = (selection) => {
  selectedIds.value = selection.map(item => item.id)
}

const handleBatchDelete = () => {
  if (selectedIds.value.length === 0) {
    ElMessage.warning('请选择要删除的用户')
    return
  }

  ElMessageBox.confirm(
    `您确认要删除选中的 ${selectedIds.value.length} 个用户吗?`,
    '提示',
    {
      confirmButtonText: '确定',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
    .then(async () => {
      const result = await deleteApi(selectedIds.value.join(','))
      if (result.code == 1) {
        ElMessage({
          type: 'success',
          message: '批量删除成功',
        })
        search()
        // 清空选择
        selectedIds.value = []
      } else {
        ElMessage.error(result.msg || '批量删除失败')
      }
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '删除取消',
      })
    })
}

// 文件上传相关
const uploadRef = ref(null)
const uploadUrl = '/api/upload' // 文件上传地址
const uploadLoading = ref(false) // 上传状态

const handleUploadSuccess = (response) => {
  if (response.code === 1) {
    user.value.image = response.data
    ElMessage.success('头像上传成功')
  } else {
    ElMessage.error(response.msg || '头像上传失败')
  }
}

const handleUploadError = (error) => {
  console.error('上传失败:', error)
  ElMessage.error('头像上传失败，请重试')
}

const beforeUpload = (file) => {
  const isImage = file.type === 'image/jpeg' || file.type === 'image/png' || file.type === 'image/jpg'
  const isLt2M = file.size / 1024 / 1024 < 2

  if (!isImage) {
    ElMessage.error('上传头像图片只能是 PNG/JPG/JPEG 格式!')
    return false
  }
  if (!isLt2M) {
    ElMessage.error('上传头像图片大小不能超过 2MB!')
    return false
  }
  return true
}
// 文件超出大小限制
const handleExceed = (files) => {
  ElMessage.warning(`最多只能上传 1 个文件，本次选择了 ${files.length} 个文件`)
}

// 清除头像
const clearAvatar = () => {
  user.value.image = ''
  ElMessage.success('头像已清除')
}
</script>

<template>
  <div class="user">
    <!-- 搜索区域 -->
    <el-form :inline="true" :model="queryParams" ref="queryForm" class="search-form">
      <el-form-item label="姓名">
        <el-input v-model="queryParams.name" placeholder="请输入姓名" />
      </el-form-item>
      <el-form-item label="手机号">
        <el-input v-model="queryParams.phone" placeholder="请输入手机号" />
      </el-form-item>
      <el-form-item label="部门">
        <el-select v-model="queryParams.deptId" placeholder="请选择" clearable style="width: 100%">
          <el-option 
            v-for="dept in deptList" 
            :key="dept.id" 
            :label="dept.name" 
            :value="dept.id" 
          />
        </el-select>
      </el-form-item>
      <el-form-item label="状态">
        <el-select v-model="queryParams.status" placeholder="请选择" clearable style="width: 100%">
          <el-option label="正常" :value="1" />
          <el-option label="停用" :value="0" />
        </el-select>
      </el-form-item>
      <el-form-item class="search-buttons">
        <el-button type="primary" @click="search">
          <el-icon><Search /></el-icon>搜索
        </el-button>
        <el-button @click="clear">
          <el-icon><Refresh /></el-icon>清空
        </el-button>
      </el-form-item>
    </el-form>

    <!-- 操作按钮区域 -->
    <div class="operation-area">
      <el-button type="primary" @click="handleAdd">
        <el-icon><Plus /></el-icon>添加用户
      </el-button>
      <el-button type="danger" @click="handleBatchDelete">
        <el-icon><Delete /></el-icon>批量删除
      </el-button>
    </div>

    <!-- 表格区域 -->
    <el-table 
      :data="userList" 
      style="width: 100%" 
      border
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column prop="name" label="姓名" width="120" align="center" />
      <el-table-column prop="username" label="用户名" width="120" align="center" />
      <el-table-column prop="image" label="头像" width="100" align="center">
        <template #default="scope">
          <el-avatar 
            :size="40" 
            :src="scope.row.image" 
            :icon="UserFilled"
            @error="handleAvatarError"
          />
        </template>
      </el-table-column>
      <el-table-column prop="deptName" label="部门" width="150" align="center" />
      <el-table-column prop="roleName" label="角色" width="150" align="center" />
      <el-table-column prop="phone" label="手机号" width="150" align="center" />
      <el-table-column prop="status" label="状态" width="100" align="center">
        <template #default="scope">
          <el-tag :type="scope.row.status === 1 ? 'success' : 'danger'">
            {{ formatStatus(scope.row.status) }}
          </el-tag>
        </template>
      </el-table-column>
      <el-table-column prop="updateTime" label="最后操作时间" width="180" align="center" />
      <el-table-column label="操作" align="center">
        <template #default="scope">
          <el-button type="primary" link @click="handleEdit(scope.row.id)">
            <el-icon><Edit /></el-icon>修改
          </el-button>
          <el-button type="danger" link @click="handleDelete(scope.row.id)">
            <el-icon><Delete /></el-icon>删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页区域 -->
    <div class="pagination">
      <el-pagination
        v-model:current-page="queryParams.page"
        v-model:page-size="queryParams.pageSize"
        :page-sizes="[10, 20, 30, 40, 50]"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
      />
    </div>

    <!-- 添加用户 / 修改用户 对话框 -->
    <el-dialog v-model="dialogFormVisible" :title="formTitle" width="600">
      <el-form :model="user" :rules="rules" ref="userFormRef" label-width="100px">
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="用户名" prop="username">
              <el-input v-model="user.username" placeholder="请输入用户名" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="姓名" prop="name">
              <el-input v-model="user.name" placeholder="请输入姓名" />
            </el-form-item>
          </el-col>
        </el-row>
        
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="手机号" prop="phone">
              <el-input v-model="user.phone" placeholder="请输入手机号" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="邮箱" prop="email">
              <el-input v-model="user.email" placeholder="请输入邮箱" />
            </el-form-item>
          </el-col>
        </el-row>
        
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="性别" prop="gender">
              <el-select v-model="user.gender" placeholder="请选择" style="width: 100%">
                <el-option label="男" :value="1" />
                <el-option label="女" :value="2" />
              </el-select>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="状态" prop="status">
              <el-select v-model="user.status" placeholder="请选择" style="width: 100%">
                <el-option label="正常" :value="1" />
                <el-option label="停用" :value="0" />
              </el-select>
            </el-form-item>
          </el-col>
        </el-row>
        
        <el-row :gutter="20">
          <el-col :span="12">
            <el-form-item label="部门">
              <el-select v-model="user.deptId" placeholder="请选择" style="width: 100%">
                <el-option 
                  v-for="dept in deptList" 
                  :key="dept.id" 
                  :label="dept.name" 
                  :value="dept.id" 
                />
              </el-select>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="角色">
              <el-select v-model="user.roleId" placeholder="请选择" style="width: 100%">
                <el-option 
                  v-for="role in roleList" 
                  :key="role.id" 
                  :label="role.name" 
                  :value="role.id" 
                />
              </el-select>
            </el-form-item>
          </el-col>
        </el-row>
        // 上传头像
        <el-form-item label="头像">
          <div class="avatar-container">
            <el-upload
              ref="uploadRef"
              :action="uploadUrl"
               name="image"
              :headers="{'token':token}"
              :show-file-list="false"
              :on-success="handleUploadSuccess"
              :on-error="handleUploadError"
              :before-upload="beforeUpload"
              :http-request="handleUpload"
              :on-progress="handleUploadProgress"
              :on-exceed="handleExceed"
              accept=".png,.jpg,.jpeg"       
              :limit="1"
              :auto-upload="true"
            >
              <div class="avatar-upload">
                <el-avatar 
                  v-if="user.image" 
                  :size="80" 
                  :src="user.image" 
                  :icon="UserFilled"
                  @click="previewAvatar"
                  @error="handleAvatarError"
                  style="cursor: pointer;"
                />
                <div v-else class="avatar-uploader">
                  <el-icon v-if="!uploadLoading" class="avatar-uploader-icon"><Upload /></el-icon>
                  <el-icon v-else class="avatar-uploader-icon is-loading"><Loading /></el-icon>
                </div>
              </div>
            </el-upload>
            <div v-if="user.image" class="avatar-actions">
              <el-button type="danger" size="small" @click="clearAvatar">
                <el-icon><Delete /></el-icon>清除
              </el-button>
            </div>
            
          </div>
          <div class="upload-tip">
            <el-icon><InfoFilled /></el-icon>
            支持 PNG/JPG/JPEG 格式，文件大小不超过 2MB
          </div>
        </el-form-item>
        
        <el-form-item label="备注说明" prop="remark">
          <el-input 
            v-model="user.remark" 
            type="textarea" 
            :rows="3" 
            placeholder="请输入用户的备注信息,最多50字"
            maxlength="50"
            show-word-limit
          />
        </el-form-item>
      </el-form>

      <template #footer>
        <div class="dialog-footer">
          <el-button @click="dialogFormVisible = false">取消</el-button>
          <el-button type="primary" @click="save">确定</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<style scoped>
.user {
  padding: 20px;
  background-color: #fff;
  min-height: 100%;
  border-radius: 8px;
}

.operation-area {
  margin: 20px 0;
}

.search-form {
  display: flex;
  align-items: center;
}

.search-form :deep(.el-form-item) {
  margin-right: 20px;
  min-width: 280px;
}

.search-buttons {
  margin-left: auto !important;
  min-width: auto !important;
}

.pagination {
  margin-top: 20px;
  display: flex;
  justify-content: flex-end;
}

.avatar-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar-upload {
  display: flex;
  justify-content: center;
  align-items: center;
}

.avatar-actions {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.avatar-uploader {
  width: 80px;
  height: 80px;
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.avatar-uploader:hover {
  border-color: #409eff;
}

.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 80px;
  height: 80px;
  text-align: center;
  line-height: 80px;
}

.avatar-uploader-icon.is-loading {
  animation: rotate 1s linear infinite;
  color: #409eff;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.upload-tip {
  font-size: 12px;
  color: #909399;
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.upload-tip .el-icon {
  font-size: 16px;
  color: #409eff;
}
:deep(.el-button .el-icon) {
  margin-right: 4px;
}

.dialog-footer {
  text-align: right;
}
</style>
